Gas-pressure regulator



(No Model.) Y

c. A. JAMIso-N. GAS PRESSURE REGULATOR. No. 428,848. Patented May 27, 1890.

UNITED STATES PATENT OFFICE.

CURTIS A. JAMISON, OF KENDALL CREEK, PENNSYLVANIA.

GAS-PRESSURE REGULATOR.

SPECIFICATION forming part of Letters Patent No. 428,843, dated May 27, 1890.

Application tiled August 13, 1889. Serial No. 320,630. (No model.)

To all whom t may concern: I Be it known that I, CURTIS A. JAMIsoN, a

citizen of the United States, residing at Keir dall Creek, in the county of McKean and State of Pennsylvania, have invented certain new and useful Improvements in Pressure Gas-Valve Regulators; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention has relation to a lowpress ure gas regulator, and the novelty will be fully understood from the following description and claims, when taken in connection with the accompanying drawings, in which- Figure l is a vertical central sectional view of my improved device. Fig. 2 is a plan View of the same. Fig. 3 is an inverted plan view of the upper section of the casing to show the perforated disk or diaphragm, and Fig. 4 is a sectional detail view of the internal tube and valve-rod.

Referring by letter to the said drawings, A indicates the casing, which is composed of an upper and lower section B C, the lower section having an inlet-aperture D and the upper section an outlet-aperture E, said sections being united by a threaded joint, as shown. The upper section B is provided with a horizontal disk or diaphragm F, having a central aperture a, and a circularseries of perforations l) surrounding said aperture. The central aperture ce is internally threaded to receive an externally-threaded tube t, which forms a central passage for the gas when the circular series of apertures b have been closed, as will be presently explained. Arranged near the lower end of this tube g and beneath the disk or diaphragm F is a hard-rubber disk H, and beneath the hard-rubber disk a disk I, of mica or other suitable material, which are designed to close the apertures b of said disk. These disks of hard rubber and mica are secured to the threaded tube g by means of a metallic disk K, arranged above them, anda valve-nut L beneath them. By this construe tion it will be seen that by turning the tube g with a Wrench or key provided for the purpose the disks may be moved to and from the diaphragm F, so as to cover and uncover the openings b therein.

The tube g is provided near its lower end and above the disk K thereon with a lateral' aperture d, which is designed to communicate with the upper chamber or interior'of the section B. This tube is, furthermore, provided at a suitable point from its upper end with a red need portion @,wh ich is internally threaded. This reduced portion may be formed by iixing a ring therein, or it may be made an integral part of the tube, the object being to provide athreaded seat for the valve-rod M, as better shown in Fig. 4 of the drawings. This valverod M, which has its upper end formed in a key-seat, and has a threaded external portion to take into the threads in the reduced portion of the tube g, passes down through the tube, and has its lower end tapering, as shown, so as to enter a tapering aperture in the lower end of the valve nut L. This valve -nut L, having' the tapering aperture or seat to receive the lower end of the valve-rod, is internally threaded and screwed upon the lower end of the externally-threaded tube t so as to serve the additional function ot" securing the mica and hard-rubber disks to said tube.

In practice a globe-valve may be employed at the inlet-opening B, and the outlet-opening E is internally threaded to receive a pipe or other means for conveying the gas to a stove or furnace. The disk or diaphragm Fis cut away near its central aperture so as to form a passage f, leading into the upper chamber of the regulator.

The key-seats of the tube g, and also the valve-rod, are protected by a socket P, adapted to permit the insertion of a key or wrench upon the same.

In operation, when a slow iire is wanted and the pressure is great in the line-pipe, the pressure, acting upon the mica and hard-ru bber disks, will close the same against the perforations in the disk or diaphragm F. 'lhe operator, by turning the valve-rod, may then admitthe gas in a desired quantity through the aperture in the nut L and from the tube g through the aperture d into the upper chamber of theregulator, from whence it may pass out through the opening E to the stove or furnace. As the pressure decreases in the line-pipe, and consequent-lyupon the micaand hard-rubber disks, the gas will be permitted to pass through the apertures b in the disk or IOO diaphragm F into the upper chamber of the regulator, and thence to the stove or furnace. 'lhe passage of gas tlnough the aperture in the nut Land consequently through the pipe (7, may be regulated by the valve-rods M, while the passage through the apertures Z) in the disk or diaphragm F may be positively regulated by manipulatingr the pipe g with a key or ring. Then the rubber and mica disks are closing the apertures b by a pressure of gas beneath them, a part of the pressure may be shut ol'f by the globe-valve employed at the inlet-opening.

Z is a rubber disk, preferably vulcanized rubber, and is provided with a centrally-located opening surrounded by a number of holes or perfor-ations fc, corresponding with and in alignment with the holes l). This disk is secured to the diaphragm F by cement, glue, or other adhesive substance that will hold it firmly in place against the diaphragm.

Having described my invention, what I claim is* l. A low-pressure gas-valve regulator having a perforated disk or diaphragm arranged between the inlet and out-let openings, in

combination with a tube carrying one or more flexible disks adapted to cover said openings, a valve-rod arranged in said tube,` anda valvenut arranged on the lower end of the tube and having an aperture or seat adapt-ed to be closed by the valve-rod, substantially as specified.

2. A low-pressure gas-valve regulator having aperforated disk or diaphragm arranged between the inlet and outlet openings, 1n eombin ation with an extern ally-threaded tube seated in the perforated disk and having a lateral aperture, one or more fiexible disks carried by said tube, a valve-rod arranged 1n the tube, and a valve-nut provided with a tapering aperture and arranged in the'lower end of said tube, substantially as specified.

A low-pressure gas-valve regulator having a perforated disk or diaphragm arranged between the inlet and outlet openings, an externally-threaded rod or tube passing through said disk, one or more flexible disks arranged on the lower end of said tube, a disk above said flexible disk, and a nut beneath the sameand securing the fiexible disk to the tube, the nut having an inletaperture, substantially as specified.

4. The combination, in a low-pressure gasregulator having a perforated disk or diaphragm, of a rubber covering having a central opening surrounded by perforations in alignment with the perforations b of the diaphragm,a11d an imperforafed disk backing the perforated one, substantially as specified.

In testimony whereof I affix my signature in presence of two witnesses.

CURTIS A. JAMISON. lVitnesses:

G. W. GRooK, T. B. CnooK. 

